Web dev (as in: HTML and CSS) improved a lot in the last 20-30 years. But if I had to quickly make a fully functioning interface and had the choice between today's web and 2002's Delphi 7 I'd choose Delphi 7 in a heartbeat. And just look at what non-technial people were able to do with Macromedia Flash in the early 2000s. You need experienced frontend devs to recreate what designers did as a hobby back then.
Of course those solutions don't solve the transition between desktop and mobile layout (since that wasn't a thing back then), but more some modern frameworks solve that well (like whatever MS calls UWP right now) without forcing everyone to reinvent a way to do infinite scrolling without running out of memory